Shuttle



Feb; 3, 1925. 1,525,029

B D 1. ELLlsoN TTTTT LE Patented Feb. 3, 1925.

UNHTED STATES PATENT OFFICE.

B D LENHART ELLISON, OF EASL-EY. SOUTH CAROLINA, ASSIGNOR TO DRAPER COR- PORATION, F HOPEDALE, MASSACHUSETTS, A CORPORATTON OF MAINE.

SHUTTLE.

i Application filed June 11, 1924.

To all Iwhom. 'it 'may concer/n.'

Be it known that I, B D LnNHAn'r ELLisoN, a citizen of the United States, residing at Easley, in the county of Pickens and State of South Carolina, have invented an Improvement in Shuttles, of which the following description, in connection `with the accompanying drawings, is a .specifica tion, like characters on the drawings representing like parts.

This invention relates to means for holding a bobbin within a shuttle, and more particularly to means for firmly securing the bobbin holding spring in place within f the shuttle.

In different types of shuttles, and more particularly in the filling replenishing type, a shuttle spring having a pair of spaced jaws is employed to engage the head of a bobbin and hold the bobbin in place in the bobbin receiving opening. This spring usually constitutes the sole means for maintaining the bobbin in place during the operation of the shuttle and is therefore constructed to grip the bobbin head with considerable force. As a result, the spring is subjected to a pronounced displacing force when a bobbin head is inserted between the jaws or removed therefrom, and this is particularly true in the lilling replenishing type of shuttle in which the new bobbin is forced downwardly rapidly between the jaws and forces the old bobbin out through the opening in the bottoni of the shuttle.

lt is essential that the bobbin holding spring be secured rigidly in place within the shuttle, for if it is displaced only slightly by the repeated torce that introduces bobbins between its aws, it will support the bobbins in an inclined position, and if a bobbin protrudes from either side of the shuttle it will break the warp threads.

Various means have been proposed for securing the bobbin holding` spring in place within its shuttle, and theV present invention relates to novel means for firmly securing this spring in place.

The improvement of the present invention is illustrated in the accompanying drawings, in which Fig. 1 is a perspective view of the bobbin holding end oi' a shuttle with the bobbin Serial No. 719,334.

engaging spring and associated parts shown in disassembled relation;

Fig. 2 is a vertical sectional View through the shuttle of Fig. 1 showing the shuttle holding spring in side view; and

Fig. 3 is a top plan view of Fig. 2.

The shuttle 10 may be constructed as usual and has av bobbin receiving opening 11 in which the bobbinlQl is supported by a bobbin engaging spring 13.l This spring usually consists of a shank portion 1st to which theV jaws 15 are connected by the outwardly flaring portions 16, and in the construction shown the entire spring is bent from a single piece of metal folded to form the shanks that are spaced slightly and which are connected to the respective jaws by the outwardly fla-ring portions. This shank portion 14 of the spring lits snugly into a slot 17 of the shuttle, as usual, and the spaced jaws 15 lie within the bobbin receiving opening 11.

Cooperating with the shuttle spring 13 is the usual shuttle spring guard 18 having' the bottom plate 19 that rests upon the bottom wall of the shuttle, and the plate 19 forms a base upon which the spring 13 is seated. The guard 18 has an integral top plate 2O connected to the bottom plate 19 by the inclined wall 21, and the top plate 2O has an aperture for a screw 22 that secures it to the body ol the shuttle over the spring. A spreader 23 is mounted between the spaced shanks oit the spring 1S and is shown as formed of sheet metal having an upper horizontally extending portion and a lower horizontally extendingy portion connected by an inclined portion, and the lower portion of the spreader is provided with an upturned end 24E that engages a securing bolt to be described, while the upper portion of the spreader has laterally extending arms 25 that extend between the guard 18 and the upper face ot' the spring As above pointed out, it is essential that the bobbin holding spring 13 be held rigidly in place within the shuttle, and improved means for securing the spring 13 rmly in place will now be described.

Heretotore a bolt or bolts extending transversely ot the shuttle and passing through the shank portion of the bobbin engaging spring have been providedto hold the bobbin spring in place, but such construction will not prevent the spring from tilting downwardly, nor will it prevent the spring 13 from tilting upwardly should the guard yield in an upward direction.

To increase lthe rigidity with which the bobbin engaging spring is secured in place, the present invention contemplates a second transverse securing means located nearer the bobbin supporting portions of the spring jaws than the bolt heretofore employed and which preferably extends through the walls ol the shuttle into supporting engagement with the spring at a point between the shank portion and the bobbii receiving end of the spring.

,ln the Constriictior shown the spring 153 is primarily secured in Yplace bya transversely extending bolt 26 that extends through the side walls of the shuttle and through an aperture in the shank 14 of the spring, and the bolt is held in place by the nut QT. The secondV transverse securing means for the spring may well take the form of a second bolt 28 which is positioned to extend through the side walls of the shuttle and througl'i apertures in the flaringportions of the spring which are located beyond the shank port-ion lll. The bolt 2S is shown as passing through alined apertures of the openings formed in the ontwardly 'flaring portions 16, of the spring, and it will beapparent that the bolt 28, to afford the maximum support, should be located as close to the bobbin engaging portion of the spring as other conditions will permit. The bolt 28 is held in place by a nut 29.

VlVhat is claimed is:

l. In ja filling replenishing loom shuttle, the combination of bobbin holding springs comprising a shank portion and two spaced bobbin holding jaws connected to the shank portion by outwardly flaring portions, a through-bolt passing transverse-ly through the sides of the shuttle and shank portion of the bobbin holding springs for securing the parts together, and a through-bolt passing transversely through the sides of the. shuttle and through the flaring portions of the bobbin holding jaws for individually supporting the jaws against displacement by an incoming bobbin during replenishment of filling.

2. A filling replenishing loom shuttle having a Abobbin chamber, bobbin holding.

springs comprising a` shank portion and two spaced bobbin holding jaws ,having ontwardly flaring portions each provided with an opening, a through-bolt passing transversely through the shuttle and shank for securing the bobbin holding springs tothe shuttleand a bolt passing transversely of the shuttle'through the openings in the flaring portions of the bobbin holding jaws for preventing downward displacement of' either bobbin holding jaw by an incoming bobbin during replenishment of filling.

In testimony whereof, I have signed my name to. this specification.

B n LENHART nLLrsoN.

Til 

